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Voiced alveolar and postalveolar approximants facts for kids

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Alveolar approximant
ɹ
ð̠˕
IPA number 151
Encoding
Entity (decimal) ɹ
Unicode (hex) U+0279
X-SAMPA r\ or D_r_o
Kirshenbaum r

 
ɹ̠

 

The voiced alveolar approximant is a special type of consonant sound. It's used in many spoken languages around the world. Think of it as a sound where your tongue gets close to the ridge behind your upper front teeth, but doesn't quite touch it to block the air completely.

The International Phonetic Alphabet (IPA) uses a special symbol for this sound: ⟨ɹ⟩. This symbol looks like a lowercase letter r that has been turned upside down. In English, the most common "r" sound is actually a bit different. It's called the voiced postalveolar approximant. This sound is made a little further back in your mouth. Its exact IPA symbol is ⟨ɹ̠⟩, but ⟨ɹ⟩ is often used because it's easier. Sometimes, you might even see the simple letter ⟨r⟩ used for English "r" sounds. However, in phonetics, ⟨r⟩ actually stands for a different sound called an alveolar trill, which is like a rolled "r."

There's also a sound called the "bunched r" or "molar r." It sounds very similar to the postalveolar approximant. You can make this sound by pulling your tongue back and bunching it up. The IPA symbols for this sound are ⟨ψ⟩ or ⟨ɹ̈⟩.

What Makes the Voiced Alveolar Approximant Special?

Voiced alveolar approximant
This picture shows how your mouth makes the voiced alveolar approximant [ɹ].
Voiced postalveolar approximant
This picture shows how your mouth makes the voiced postalveolar approximant [ɹ̠].

Sounds like the voiced alveolar approximant have several key features:

  • Approximant: This means your tongue gets close to another part of your mouth, but doesn't fully block the airflow. The air just flows smoothly past.
  • Alveolar: The sound is made by your tongue getting close to the alveolar ridge. This is the bumpy area right behind your upper front teeth.
  • Voiced: When you make this sound, your vocal cords vibrate. You can feel this if you put your hand on your throat while saying it.
  • Oral: The air comes out only through your mouth, not your nose.
  • Central articulation: The air flows out over the center of your tongue.
  • Pulmonic: The air that makes the sound comes from your lungs.

Where Can You Hear This Sound?

The voiced alveolar approximant, or sounds very similar to it, appear in many languages. Sometimes it's the main "r" sound, and sometimes it's a variation of another "r" sound.

Alveolar Approximant Sounds Around the World

Here are some examples of languages that use the alveolar approximant:

Language Example Word How it Sounds (IPA) Meaning Notes
Albanian gjelbr [ˈɟʑɛlbəɹ] 'green'
Armenian սուրճ [suɹtʃ] 'coffee' (Classical Armenian)
Assamese ঙা (rônga) [ɹɔŋa] 'red'
Assyrian Neo-Aramaic ܪܒ [ɹɑbɑ] 'many' (Alqosh and Tyari dialects)
Bengali আবা [abaɹ] 'again' Especially in some Eastern dialects.
Burmese ရိဘောဂ [pəɹḭbɔ́ɡa̰] 'furniture' Mostly in words borrowed from other languages.
Chukchi ңирэк [ŋiɹek] 'two'
Dahalo káð̠˕i [káð̠˕i] 'work' This sound is often a variation of another 'd' sound.
Danish ved [ve̝ð̠˕ˠ] 'at' A variation of the 'd' sound at the end of a word.
Dutch door [doːɹ] 'through' (Central and Western Netherlandic dialects)
Dutch rat [ɹat] 'rat' (Leiden dialect)
Faroese róður [ɹɔuwʊɹ] 'rudder'
German Rebe [ˈɹeːbə] 'vine' Found in some specific dialects like Siegerland and Silesian.
Greek μέρα [ˈmɛɹɐ] 'day' A variation of the 'r' sound in fast or casual speech.
Icelandic bróðir [ˈprou̯ð̠˕ir] 'brother'
Limburgish maintenant [ˈmæ̃ːn˦ð̠˕ənɑ̃ː˨] 'now' (Montfortian dialect)
Persian فارسی [fɒːɹˈsiː] 'Persian' A variation of the 'r' sound before certain consonants.
Portuguese amor [aˈmoɹˠ] 'love' In some Brazilian dialects, especially at the end of words.
Spanish doscientos [do̞ɹˈθje̞n̪t̪o̞s] 'two hundred' (Andalusian Spanish)
Spanish invierno [imˈbjeɹno] 'winter' In some dialects like Belizean, Caribbean Colombian, and Puerto Rican Spanish.
Swedish starkast [ˈs̪t̪äɹːkäs̪t̪] 'strongest' A variation of the 'r' sound.
Tagalog parang [paɹaŋ] 'like-' Used by younger speakers who are more familiar with English.
Turkish artık [aɹtɯk] 'excess, surplus' A variation of the 'r' sound at the end of a syllable.
Vietnamese ra [ɹa] 'go out' (Saigon dialect)
Zapotec r [ɹd̪ɨ] 'pass' (Tilquiapan Zapotec)

Postalveolar Approximant Sounds

The postalveolar approximant is very common, especially for the "r" sound in English.

Language Example Word How it Sounds (IPA) Meaning Notes
English red [ɹ̠ʷed] 'red' This is the typical "r" sound in most American, Australian, and British English. It's often made with rounded lips.
Igbo rí [ɹ̠í] 'eat'
Malay راتوس / ratus [ɹ̠ä.tos] 'hundred' Sometimes used instead of a rolled or flapped 'r'.
Maltese malajr [mɐˈlɐjɹ̠] 'quickly' In some dialects.
Shipibo roro [ˈd̠ɹ̠o̽ɾ̠o̽] 'to break into pieces'
Thai กรุงเทพ / Krungthep Bangkok Can be a variation of the alveolar approximant.

You can also find the [ɹ] sound as a variation of other "r" sounds in languages like Edo, Fula, Murrinh-patha, and Palauan.

Learn More About Sounds

  • Index of phonetics articles
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